DATAMATH CALCULATOR MUSEUM
CASIO FILM CARD SL-800
|Date of introduction:||November 1983||Display technology:||LCD|
|New price:||Display size:||8|
|Size:|| 2.1" x 3.4" x 0.03"
54 x 85 x 0.8 mm3
|Weight:||0.4 ounces, 12 grams||Serial No:||4L105A|
|Batteries:||n.a.||Date of manufacture:|
|AC-Adapter:||Origin of manufacture:||Japan|
|Program steps:||Courtesy of:||Joerg Woerner|
Within the Datamath Calculator Museum you'll notice a lot of credit card sized calculators like the TI-1754, TI-1780, TI-1786, TI-307, Canon LC-7, Casio LC-79, or Toshiba LC-851. All these calculators have two dimensions common: The length and the width. But we never talked about the third dimension, the height or thickness of the calculators.
The Casio FILM CARD SL-800 is the only real credit card sized calculator and matches exactly the ISO 7810 standard. This standard is valid for all credit and debit cards and defines a size of 85mm x 54mm x 0.8mm (3.375" x 2.175" x 0.030").
Squeezing a calculator in such a thin housing is not the easiest job and some limitations are obvious:
|• Be sure not to damage
the unit by bending or dropping. For example, do not carry it in your
• If any part of the display or its reverse side is touched, it will momentarily discolor, however,
this is not a malfunction but results from the unit's super thinness. Special care should be taken
not to excessive pressure the display or push it with a pointed object in order to prevent malfunctions.
• Note that the unit has small indentations which are a necessary part of the production process.
• Since the unit is composed of precision electronic parts, never attempt to take it apart.
If you have additions to the above article please email: firstname.lastname@example.org.
© Joerg Woerner, February 28, 2004. No reprints without written permission.